Device for laying and indenting rubber foxing



W. G. CHENEY.

DEVICE FOR LAYING AND INDENTING RUBBER FOXING.

APPLICATION FILED APR. 2!, 1919.

Patented Apr. 25, 1922.

WILLIAM G.. crannies, or MA-RLBoRo, rliassaciixisisrrs', te mate 111 m) snort MACHINERY CORPORATION, or PATERSON,.1\TEW- masnxaconronamron or NEW JERSEY.

DEVICE For, LAYING AND INDENTING meme Foxfire;

A .Specification of Letters l 'aitent. Ap

Applicationfiled April 21, 191a serial m; 291,455!

To all whom it may concern.

Be it known that I, l/VILLIAM G. CHENEY a citizen of the United States residing at l larlboro, in the county of: Middlesex and State or" lwiassach'usetts, have invented certain improvements in Devices for Laying and IndentingRubber FoX-ing, 01" Which the following description, in connection With-the 1 accompanying drawings, is a specification,

like reference characters on-the drawings indicating like partsin the several figures.

This invention relates to the manufacture of boots and shoes and has particular reference to the production of vulcanized rubber sole articles such as tennis shoes sneakers and arctics. In the manufacture of such articles a strip of high-grade rubber compound termed toning is customarily employeda's an intermediate connection be tween the outsole member of the shoe and itsupper for the purpose of securing the necessary vulcanization of those parts together. Before placing thefoxing in'position, cement is applied along portions of the upper and; outsole. So far as I am aware, the practicehas always-been to place the strip of taxing along the cement coated portions of the shoe and then toyrun a heavy handroller back and forth along the strip to ensure proper contact of the foxing with the cement in order that the later vulcanizing operation. may effect a secure and completely water-proof joint. It has also been the practiceto produce the appearance of a line of stitches along the edge of theffoxing which overlaps the portion 7 of the upper above the shoe bottom, this operationbeing effected by the manual use of a serrated wheel called a stitch Wheel.

The two operations of rolling or laying the toxingby the-hand roller referred to and producing the stitch line are efiected in'succession, requiring notonly' considerable time and manual'efl ort, but alsoskill in so guiding the stitch wheel that the line produced will be close'to and justwithin the margin or edge of the toxing stripifl An important object of the present invention is toavo'id the loss of time resulting from separate; operations 0t rolling or laying the foxing and then st1tchindenting it. WVith this object in iew, the invention in one aspect comprises a rotary wheel having a; toothed portion to produce a line oft'he Work and result in of indentations and Having also a smoothfoxing laying portion ofsuch' shape-"that it will sufficiently conform toytheportions or the-lasted shoe underlying thefox'ing to materially aid the -ope'ratorin so guiding the shoe that the stitch line-wi-l l be properly" located.

Another important obj eot o f the invention-- isto provide;- a: rotaryflfoxing applying device-the rotation of which will be automa'tically stopped it there is such a; protuberance. in the foxing as might arrest teed cutting into-the foxlng.

inaccordancegwith important features of With these and other "objects I in view and the: invention, the illustratedimachine'com prises a" stitch-indenting Wl168ll and; an ad-'--- to engagle the bottom of the'sole and guide h Shoe to the'ilaying. and indenting tool;

said roll being mounted to enable" the Work to be presented to: the tool ,at the; required angle; NJ? I I have sof farreferred to'themachine as useful for la i g-and stitch-indentingfox' ing. It: islaljso adapted for thelaying and stitch wheeling ofthe margins of the outsoles of rubben footwear as-willbecome more 5 apparent hereinafter.

th'd w e Fi 1 is a perspective yiew iof. the

machine] Fig, 2 is a sectional elevation. illustrating the operation of the machine.

Fig. 3 ".sa sectionahviewof the operating tool; illustrating its inountingupon the driving shaft.

-- Fig. 4c is-an elevation ofthetoe portion of a; shoe which has beemoperated-upon by the tool. v

A suitable frame; standard 12 is formed orgprovided at its upper endwith abearing 13 'for a shaft 14. which maybe: driven by on a pulley- 15..

any suitable means/such as a belt-running The other endofthe' shaft is reduced teat 16 to provideahshoulder 17. Se

cured tothe shaftadjacent the shoulderfl is, a: dislc18. -Fitted toqthe, shouldered portion of the shaft 14 is the base member 19 v of a cylinder, the main portion of which is slitted or split to form a series of parallel tongues 26. The outerends of the tongues rest upon a reduced portion of adisk 21, the periphery of which is milled or formed with teeth to indent the rubber material as hereinafter described. The wheel 21 is mounted upon the outer endof'the reduced portion of the shaft so that it may rotate thereupon. i

when the friction is overcome as hereinafter described, said wheel 21 being held in place by a washer 22 through which a screw 23. passes into the end of the shaft. A spring 24 coiled about the reduced portion of the shaft bears at its opposite ends against the 7 base 19 of the split cylinder and. against the reduced portion of the wheel 21, said spring serving to hold frictionally the base member 19 against the shoulder 17 of the shaft and also to cause such friction between the wheel'21 and the washer 22 as to cause rotation of the wheel 21 excepting at such times as opposition to its rotation, as hereinafter described, may hold the wheel sta tionary while the shaft continues to revolve.

Mounted on the cylinder 20 and confined between the disk 18 and'the wheel 21 is a laying or pressing member in the form of a roll 25,-,preferably of rubber. Preferably the exterior of the roll 25 is such that its outer end has a somewhat concave tapering formation so that when work is applied thereto, the laying member 25 will somewhat conform to the transverse shape of the portion of the shoe to be operated upon as illustrated in Fig. 2.

slightly'away from the wheel and permit it reaches the wheel 21 while the operator is holding the work in the position shown in Fig. 2, the wheel will be stopped, owing to the protuberance of the foxing, givingthe operator an opportunity to move the work to pass the protuberance without cutting into it. To'enable the operator to present the work to the tool 21,- 25 at the required angle, and yet hold the work steadily at "such angle as the operator feeds the work along, 1 provide a guide roll26 mounted in yoke 27 pivotally connected at 28 to a stud 29 which is reciprocably mounted in a sleeved bearing 30, the latter having slots 31' into which a pin 32 secured transversely in the stud 29 projects, so that said stud may shift'endwise in the sleeve or bearing, but

not rotate therein. A spring 33 within the against a suitable stop in the edge portion of the foXing which exsleeve or bearing bears] at one end against collar 34: which is secured by the pin 32 to the stud 29 and at the other end shoulder formed in the sleeve.

The sleeve or bearing 30 is provided with a flange 35 bearing against vertical guides at the inner side of a slot 36 formed in the head of standard 12 By means of a nut 37 fitted to a threaded portion of the sleeve or bearing, said sleeve or hearing may be vertically adjusted to vary the distance of the guide roll 26 from the tool 21, 25. i T he stud 29 and the guide roll 26 carried thereby may shift to the right from the position shown in Fig. 2 against the action of spring 33, provided the operator presses the work with sufficient force against the roll 26 in orderto present the work at the proper angle to the tool 21, 25. The outer limit toward the left from the position shown in Fig. 2 to which the stud and roll 26 may be shifted by the spring '33 is. determined by a nut 38 fitted to the end of stud 29 which passes through the hub portion of the bearing or sleeve 30. l A suitable guide for a strip of foxing which may be led from any suitable source of supply is indicated at 89, said guide'being carried by an arm 40 adjustably mounted in a clamp 1-1 carried by the upper end of a rod 42 which is adjustably secured by any suitable means to the head of the standard 12.

In operation, whether the strip of foXing has been completely located around the cement bearing portion of the shoe before using the machine, or is led through the guide 39 on to the shoe, the operator holds the work in substantially the position shown I in. Fig. 2 with the sole of the lasted shoe bearing against the guide roll 26, andhe then either feeds the work along or permits itto be fed by the tool while holding the work firmly against the tool so that the laying member 25 of the tool will effect complete and uniform contact of the foXing' with the underlying cemented portion of the shoe while at the same time the wheel 21 produces the appearance'of a line of stitches tends partly up over the sides of the upper. Since the guide roll 26 is yieldingly mount ed, the work can be pushed back so that'the transverse angle of the sole portion of the shoe may vary more or less relatively to the axis of rotation of the tool 21, 25 inorder to operate upon the desired portion of the foxing. ()wiug to the yoke 27 being pivotally connected to the stud 29, the-said roll 26 will tilt in conformitywith the particular angle at which the-work is fed along.

Owing to the fact that the operator causes the work to bear against the tool with considerable pressure, he would be liable to con- 'tinue the feedif the foxing presented some protuberance such as results from overlapping the ends of the foXing. Owing to the frictional mounting of the tool, however, if any such protuberance reaches the tool, it stops the tool from rotating until the operator can relieve the pressure suliiciently to enable the protuberance to pass along without being cut into.

In Fig. 4 I have indicated a portion of a shoe upper a and foxing b and outsole 0, these parts being also shown in section in Fig. 2. After the foxing has been laid ant stitch indented as described, the same tool or machine can be used for rolling over the marginal portions of the out-sole and stitch indenting the edge thereof. In doing this, the outsole is laid in place and held there by the usual cement which is employed on the innersole, and the work then manipulated in the manner described so that the laying member 25 of the tool will turn up and roll down the marginal portions of the outsole while the wheel 21 simultaneously forms the appearance of a line of stitches as'indicated in Fig. 4.

Having described my invention, What I claim is 7 l. A machine of the cl'assidescribed, having in combination, a combined laying and indenting tool comprising a roll having a concavity therein'shaped to conform substantially to the convexity at the lower margin of a lasted shoe and a toothed disk adjacent the roll, and means for rotating the tool.

2. A machine of the class described, having in combination, a combined laying and indenting tool comprising an elastic roll n a concavity therein shaped to corn form substantially to the convexity at the lower margin of a lasted shoe and a toothed disk adjacent the roll, and means for ro tating the tool. I v

A machine of the class described, having in combination, a combined laying and indenting tool comprising a roll of yielding material having one end of less diameter than the other and a toothed disk located at the end of the smaller diameter, and means for rotating the tool.

4. A device of the character described comprising an elastic rotary roll, a toothed disk adjacent the roll, and means for frictionally cperating the disk and roll.

5. A machine of the class described, having in combination, a combined foxing laying and indenting tool comprising an elastic pressure member having a concavity to receive the convexity at thelower margin of a lasted shoe and to contact with the body of the foXing and an indenting member located to engage the upper edge of the foxing, and means for operating the tool.

6. A machine for operating upon a rubber soled shoe provided with a foxing hav ing, in combination, a foXing-laying roll havinga periphery shaped to correspond substantially, to the transverse curvature of the lower margin of the shoe, a stitch-in- 8. A machine of the class described,'hav 1 ing in combination, a combined pressing and indenting tool shaped to operate upon the lower margin of a shoe, means for'rotating the tool, and a guide arranged to en gage the bottom of the shoe.

9. A machine or the class described, having in combination, a combined pressing and indenting tool shaped to operate upon the lower margin of a shoe, means for rotating the tool, a guide arranged to engage the bottom of the shoe, and means whereby.

the guide may be adjusted in a direction substantially parallel to the axis of rotation of the tool. p

10. A machine of the class described, having in combination, a combined work pressf ing and indenting tool comprising an elastic roll and a metallic toothed disk for operating upon the lower'marginof a shoe, a guide arranged to engage the bottom of the shoe, and a spring supporting the guide.

11. A machineof the class described, hav ing in combination, a combined laying and indenting tool, and a work "guide arranged to engage the bottom of a shoe to aidin pre 7 senting the lower margin thereof to the tool,

said guide comprisinga'springpressed rod, a yoke pivoted to said rod, and a roll mounted in the arms of the yoke. V

12 A machine ofv the class described, having in combination, a rotary indenting wheel, and a guide for a shoe constructed and. arranged to cause the wheel to operate upon the margin of the shoe above the bottom thereof, said guide comprising a rod slidable inaj direction substantially parallel to the axis of rotation ofthewheel, a" yoke pivoted to the rod about an axis transverse to the axis of the rod, anda roll mounted in the arms of the yoke.

In testimony whereof I have signed my nameto this specification.

WILLIAM G. CHENEY. 

